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Petroleum Science >2010,??Issue 3:??302-310 DOI: https://doi.org/10.1007/s12182-010-0072-2

Distribution and genesis of the anomalously high porosity zones in the middle-shallow horizons of the northern Songliao Basin Open?Access

文章信息

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作者：Meng Yuanlin,Liang Hongwei,Meng Fanjin,Wu Heyong,Wang Cheng,Xiu Hongwen,Zhang Anda,Li Yaguang and Guo Rixin
作者單位：

School of Earth Science, Northeast Petroleum University, Daqing 163318, China;School of Earth Science, Northeast Petroleum University, Daqing 163318, China;School of Earth Science, Northeast Petroleum University, Daqing 163318, China;Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing 163712, China;Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing 163712, China;Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing 163712, China;Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing 163712, China;Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing 163712, China;No.1 Petroleum Production Subcompany, Daqing Oilfield Company Ltd., Daqing 163113, China

投稿時(shí)間：2009-07-06
引用方式：Meng, Y., Liang, H., Meng, F. et al. Pet. Sci. (2010) 7: 302. https://doi.org/10.1007/s12182-010-0072-2

文章摘要

High-quality reservoirs occur in the middle-shallow horizons of the northern Songliao Basin.The distribution and genesis of their anomalously high porosity zones were studied using measured porosities, examination of ordinary thin sections and blue epoxy resin-impregnated thin sections and by SEM. The results show that there are three anomalously high porosity zones at the depth of 450-900 m, 1,300-1,900 m, 2,050-2,350 m respectively, named zone i, zone ii and zone iii from top to bottom. Horizontally, zone i and zone ii are distributed all over the basin except in the Southeastern Uplift, while zone iii is only distributed in the Central Depression. Zone i was formed by meteoric water leaching as well as organic acid dissolution. Zones ii and iii were dominantly formed by organic acid dissolution. Additionally, clay mineral transformation generating H+ and hydrocarbon emplacement retarding the cementation of sandstones are also important for the formation of zones ii and iii.

關(guān)鍵詞

    Anomalously high porosity zone, diagenetic fluid, organic acid, diagenesis, secondary porosity, hydrocarbon emplacement, sedimentary facies, Songliao Basin